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390 Cards in this Set
- Front
- Back
Aristotle |
asked questions to understand the relationship between the body and the psyche |
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Wilhelm Wundt |
carefully measured observations and experiments |
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Titchener |
relied on self report data and introspection, had people report on sensations and other elements of reaction in response to stimuli, tried to build a model of the mind's structure (structuralism) |
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William James |
wrote the Principles of Psychology, opposed the structuralism focus on introspection and the search for smallest elements, developed functionalism which focuses on the outcome of mental processes and behaviour, studied human thoughts, feelings, etc. and asked what functions they might serve, focuses on results of behaviour rather than elements of behaviour |
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Skinner |
founded behaviourism, focusing on behaviours as the only way to derive general principles of psychology, thoughts do not cause behaviour as behaviour is shaped by learned contingencies, allowed psychology to be studied with non-human subjects, most robust approach |
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Jean Piaget |
key figure in the rise of cognitivism, belief that our thoughts do matter, return to focus on mental processes but using other approached than introspections |
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why do we need a scientific approach? |
our intuition in coloured by a multitude of cognitive biases and the scientific approach helps to guard against this |
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hindsight bias |
"i knew it all along," strength of psychology is not to explain a behaviour after the fact but predict what behaviours will occur before they happen |
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the single case bias |
"my uncle Bob smoked all his life and lived to 100," can't use a single case or exception to practice psychology |
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perceiving order in incidental events bias |
"i'm on a streak," probability for each roll, shot, etc. is the same |
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why are we biased? |
biases help us function, simplify our thinking, makes our day more effortless for our brain, helps us make decisions, gives us the sense that the world is the way we feel it is |
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Steps of the scientific method |
something we observe, theory to explain it, hypotheses, operationalize, data collection and analysis, support or rejection of theory, share findings and mobilize knowledge regardless of results |
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six key principles of scientific thinking |
falsifiablility, replicability, extraordinary claims (is the evidence as strong as the claim?), Occam's Razor (does a simpler explanation fit the data just as well?), ruling out rival hypotheses, correlation vs. causation |
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descriptive research methods |
observe phenomena as they happen, goal is not to explain but to describe, case studies, must be careful not to overgeneralize, naturalistic observation (in natural environment), surveys |
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correlational research methods |
is there an association between X and Y? most used method, primary goal is not to explain but to predict when something will happen, surveys, typically interpreted in terms of a correlation coefficient (positive vs. negative, strong vs. weak, perfect correlation = 1), correlation does not mean causation |
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experimental research methods |
primary goal is to examine causes, only method that allows you to draw robust conclusions, experimenter manipulates one factor/variable to determine its effect, requires a control group, strategies to control for the effects of external variables |
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how do researchers control for external factors? |
random assignment helps ensure that the composition of the groups typically reflect the composition of the population, standardizing procedures |
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statistical inference |
probability that you will find the same differences (or bigger ones) as you have observed in future studies, start with assumption that there is no difference between conditions, if the probability is smaller than 5% it is deemed "statistically significant" and the hypothesis is supported (kind of a reverse process) |
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six characteristics of good research |
based on measurements that are objective, valid, and reliable, concern to reduce bias, generalizable, can be replicated, shared with others, done ethically |
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what is the meaning of objective and reliable? |
measure of a variable that is consistent within a margin of error, consistent and stable across multiple observations and points in time, self-report, third party observation, physiological measure |
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construct validity |
the extent to which the variables in a study truly represent the abstract concept of interest to the researcher |
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experimenter bias |
the experimenter's expectations may influence the results, solution is a double-blind study in which neither the participant nor the researcher know what is going on |
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placebo effect |
observation of behaviour change because the participant believes in the effectiveness of the manipulation |
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Hawthorne effect |
behaviour change occurring as a result of merely being observed, solution is unobtrusive measures in which the subject does not know they are being studied, anonymity, confidentiality |
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knowledge mobilization |
act of putting knowledge generated through research to active use by publishing in scholarly journals, etc. |
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two main principles of ethical research |
clear benefits which outweigh the risks, participants must provide informed consent |
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Research Ethics Board |
committee of researchers and officials at an institution charged with the protection of research participants, review research protocols and assess the possible benefit to society against the risk to participants |
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structure of a neuron |
dendrites receive information from other neurons, ell body contains the nucleus and decides the activation, axon conducts nerve impulses, terminal button communicates with the next neuron |
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action potential |
neural impulse that travels down the axon to the terminal buttons, generated by moving positive and negative charge |
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how is the action potential initiated? |
neuron begins at resting potential, signal received from other neuron, when enough signals are received the threshold is reached (threshold is all or nothing), depolarization, repolarization, refractory period |
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how do neurons communicate with each other? |
action potential causes release of neurotransmitters from axon terminal into the synaptic gap, float across gap until they bind with specific receptors on the dendrites of another neuron, reuptake (vesicles reabsorb neurotransmitters) |
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acetylcholine |
enables muscle action, learning, memory (Alzheimer's disease) |
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dopamine |
influences movement, learning, attention, and emotion (Parkinson's disease, ADHD) |
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serotonin |
affects mood, hunger, arousal (depression) |
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norepinephrine |
alertness, arousal (ADD) |
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glutamate |
excitatory, learning, memory (migraines, seizures) |
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GABA |
inhibitory, learning, memory, sleep (increased by alcohol) |
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agonist |
molecule that fills the receptor site and activates it, acting like the neurotransmitter |
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antagonist |
molecule that fills the receptor so that the neurotransmitter cannot get in and activate the site |
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synaptic pruning |
elimination and creating of new connections |
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neurogenesis |
production of new neurons from immature stem cells |
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nerves |
neural "cables" containing many axons |
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divisions of peripheral nervous system |
somatic, autonomic (sympathetic and parasympathetic) |
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endocrine system |
set of glands that produce hormones which travel through the bloodstream, slower but longer message transmission |
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medulla |
base of brain stem, life-sustaining functions such as breathing, heartbeat, etc. |
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pons |
helps coordinate unconscious movements, sleep |
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midbrain |
associated with movement, tracking of visual stimuli and reflexes triggered by sound |
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reticular formation |
collection of small neural networks spread throughout the brain stem, some control over life-sustaining functions, most known for role in sleep and consciousness, helps filter incoming sensory information |
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cerebellum |
back of the brain, fundamental to the coordination of voluntary movement and balance |
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thalamus |
relay centre for sensory and motor information to different parts of the cerebral cortex (except smell), sends information from the cortex to the medulla and cerebellum |
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limbic system |
located on both sides of the brain, processes information about our internal states, plays a key role in emotional experiences and memory formation, includes hippocampus, amygdala, and hypothalamus |
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hypothalamus |
associated with emotions and motivations, helps in regulation of hunger and thirst, experience of rewards, adjusts body temperature in changing environments, directs endocrine system via messages to the pituitary gland |
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amygdala |
two lima-bean sized neural clusters, associated with the experience of different emotions (particularly negative ones), key role in fear conditioning |
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hippocampus |
partakes in neurogenesis throughout the lifespan, processes conscious, episodic memories, key to creating mental maps, works with the amygdala to form emotionally charged memories |
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cerebral cortex |
layer covering the brain, processes information about external stimuli, circonvolutions increase surface area, grey matter (cell bodies) and white matter (axons), glial cells which feed and protect neurons and assist neural transmission |
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occipital lobes |
visual information |
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temporal lobes |
auditory information |
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parietal lobes |
sensory information, touch and body position |
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frontal lobes |
speech, movement, judgment |
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prefrontal cortex |
moral decisions, impulse control, social behaviour and relationships |
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two hemispheres |
four lobes found in both, contralateral connections to the body's systems, two sides do not touch, each hemisphere handles a lot of similar functions but some functions are specialized to only one side, generally right hemisphere plays a role in visual and spatial tasks while left hemisphere plays a role in language and analytical thinking |
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motor cortex |
axons receive motor signals from the cortex |
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sensory cortex |
axons send sensory information to the cortex |
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corpus callosum |
allows exchange of information between hemispheres, sometimes severed surgically |
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Wernicke's area |
speech comprehension |
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split-brain |
corpus callosum surgically severed but optic chiasm (where visual fields switch sides of the brain) stay intact, halves of the brain and halves of the visual field are no longer coordinated |
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how to investigate the brain? |
stimulation (chemically, magnetically, electrically), lesions (surgeries, accidents), animal models, noninvasive (EEG, CAT, MRI, PET, fMRI) |
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cognition |
mental activities that help us function, including figuring out how the world works, developing models and concepts, problem solving, storing and retrieving knowledge, understanding and using language |
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Piaget's schemas |
"mental container" that holds our experiences and organizes them according to similarities and differences |
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assimilation |
new experiences are absorbed into an already existing schema |
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accomodation |
new experiences lead to the modification of a schema, brings children to enter a new way of looking at the world |
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Piaget's stages of development |
development is a combination of nature and nurture, occurs in steps |
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sensorimotor stage |
experiencing the world through senses and actions, do not possess object permanence, stranger anxiety, birth to two years old |
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preoperational stage |
representing things with words and images, using intuitive rather than logical reasoning, pretend play, egocentrism, 2-7 years old |
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theory of mind |
ability to understand that others have their own point of view, fundamental turning point between preoperational and concrete operational stages |
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concrete operational stage |
thinking logically about concrete events, grasping concrete analogies and preforming arithmetical operations, 7-11 years old |
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formal operational stage |
abstract reasoning and logic, potential for mature moral reasoning, 12 years old and up |
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flaws in Jean Piaget's theory |
development is a continuous process, children show some mental abilities and operations at an earlier age, formal logic is a smaller part of cognition than Piaget believed |
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socialization |
process by which children learn norms and values that regulate their social environment, fundamental to our ability to efficiently interact with others, depends on a child's relationship with their parents/caregivers |
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attachment |
emotional tie to another person, can appear as a desire for physical closeness to a caregiver, tested using "strange situations" test |
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secure attachment |
most children, distress at separation, seek contact at reunion |
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anxious insecure attachment |
clinging to mother, less exploration, distress at separation, remain upset at reunion |
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avoidant insecure attachment |
indifferent to mother |
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what causes different attachment styles? |
parenting styles and temperament |
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authoritarian parenting |
parents impose rules and expect obedience |
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passive parenting |
parents submit to kids' desires, do not enforce limits or standards for child behaviour |
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authoritative parenting |
parents enforce rules, limits, and standards but also explain, discuss, listen, and express respect from child's ideas and wishes |
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physical development during adolescence |
sexual maturation (primary and secondary sex traits), height changes |
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neurological development during adolescence |
brain stops developing new synapses, pruning of connections not being used, coating most often used connections in myelin, brain in best state to learn things, frontal lobes last to mature with limbic system maturing much sooner |
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cognitive development during adolescence |
focus on social representation and how others think of you, plan how to pursue goals, start to appreciate how reality compares to ideals |
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Perry's Intellectual Development Scheme |
starts with kids who focus on absolute answers as they try to assimilate everything into schemas, adolescents begin to form more complex answers and respond with what they know the correct answer should be (even if they don't believe it themselves), finally appreciate and believe their complex answers |
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what do maturation, experience, and education lead to? |
ability to appreciate that often multiple answers exist for any given problem, ability to tolerate intellectual uncertainty, ability to assess the validity of relative answers using critical thinking, ability to accept multiple relativistic answers |
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Lawrence Kohlberg's levels of moral reasoning |
purpose of adolescence is building towards moral reasoning, thinking about meaning and purpose in deeper terms than in childhood |
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preconventional morality |
up to age nine, "follow the rules because if you don't you'll get in trouble and if you do you might get a reward" |
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conventional morality |
early adolescence, focus on societal values, "follow the rules because we get along better if everyone does the right thing" |
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postconventional morality |
late adolescence and adulthood, focus on internal morality principles, "sometimes rules need to be set aside to pursue higher principles" |
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critics of Kohlberg's model |
cultural bias, low correlation with moral behaviour, causal direction (assumes that you cognitively assess the situation and then feel an emotional response) |
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Erik Erikson's model of lifelong psychosocial development |
8 stages characterized by different dilemma concerning our relations to other people |
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infancy |
trust vs. mistrust, if needs are dependably met infants develop a sense of basic trust |
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toddlerhood |
autonomy vs. shame and doubt, toddlers learn to exercise their will and do things for themselves or they doubt their abilities |
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preschool |
initiative vs. guilt, preschoolers learn to initiate tasks and do things for themselves or feel guilty about wanting to be independent, must emphasize and reward tasks regardless of how well they are executed or they will feel guilty |
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elementary school |
competency vs. inferiority, children learn the pleasure of applying themselves to competently accomplish tasks of they feel inferior, must build a genuine sense of competency and give actual advice rather than rewarding tasks regardlessly |
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adolescence |
identity vs. role confusion, teenager work at refining a sense of self by testing roles and then integrating them into a single identity or they become confused about who they are, presents idea that teenagers should be conflicted |
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young adulthood |
intimacy vs. isolation, young adults learn to form close relationships and to gain capacity for intimate love or they feel socially isolated |
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middle adulthood |
generativity vs. stagnation, people discover a sense of contributing to the world (usually through family and work) or they feel a lack of purpose/meaning in their life |
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late adulthood |
integrity vs. despair, feel a sense of satisfaction from having successfully gone through the previous stages or experience feelings of despair and failure |
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impacts of growing old |
physical changes, decline in abilities, societal pressures, isolation and loneliness, solution is volunteering |
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sensation |
the detection of physical energy by our sensory organs, which is then relayed to the brain |
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preception |
the brain's interpretation of the raw sensory input from the sensory organs; the process of attending to, organizing, and interpreting sensory information, enabling us to recognize/judge meaningful objects and events |
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bottom-up processing |
taking sensory information and then assembling and integrating it (sensation); constructing the whole from its parts |
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top-down processing |
using models, ideas, and expectations to interpret sensory information (perception) |
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reception |
stimulation of sensory receptor cells by energy |
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transduction |
transforming cell stimulation into neural impulses |
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transmission |
delivering neural information to the brain to be processed |
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absolute threshold |
minimum level of stimulus intensity needed to detect a stimulus half the time |
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subliminal |
below our threshold for being able to consciously detect a stimulus, but still registered by the sensory organ |
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difference threshold |
minimum difference for a person to be able to detect the difference half of the time |
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Weber's Law |
for two stimuli to be perceived as different they must differ by a constant minimum percentage and not a constant amount |
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signal detection theory |
aims to explain whether or not we detect a stimulus (particularly with background noise), suggests that detection depends on psychological factors such as alertness, expectations, motivation, as well as sensory experience (both bottom-up and top-down) |
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Gestalt principles |
tries to understand the laws of our ability to acquire and maintain meaningful perceptions in an apparently chaotic world, human happiest living in the present moment |
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Law of Pragnanz |
we perceive stimuli in our environment in their simplest form |
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proximity |
objects physically close to each other tend to be perceived as unified wholes |
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similarity |
objects similar to each other tend to be perceived as unified wholes |
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continuity |
we still perceive objects as wholes even if parts are blocked |
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closure |
parts are combined to create wholes |
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symmetry |
we perceive objects that are symmetrically arranged as wholes |
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figure-ground |
figure is the centre of our attention, we ignore the background, constantly make instantaneous decision to focus our attention on what we believe is the figure |
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how do we go from energy waves to perception? |
multiple types of waves of electromagnetic radiation, our eyes respond to some wave sensations which become colours
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which wave properties do we perceive? |
wavelength, amplitude |
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wavelength |
becomes colour/hue |
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amplitude |
becomes intensity/brightness |
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key structures of the human eye |
pupil, lens, iris, cornea, retina, fovea, blind spot, optic nerve |
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types of photoreceptors |
cones and rods
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cones |
6 million, centre of retina, low sensitivity in dim light, high colour sensitivity, high detail sensitivity |
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rods
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120 million, periphery of retina, high sensitivity in dim light, low low sensitivity, low detail sensitivity |
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photochemical reaction in rods and cones |
light strikes rods and cones, chemical reaction activates bipolar cells, bipolar cells activate ganglion cells whose axons converge to form the optic nerve, nerve transmits information to the brain |
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turning neural signals into meaningful images
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some ganglion cells are dedicated to specific visual patters, certain edges, lines, or movements, supercells integrate these feature signals to recognize more complex forms |
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Young-Helmholtz Trichromatic Theory |
assumes three types of colour receptors (cones): red, green, and blue; if you don't have a particular type of cone you won't be able to see particular colours
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opponent-process theory |
neural process based on sets of complementary colours, pairs inhibit each other, if one is overstimulated the other is perceived even if it isn't present |
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how do we perceive depth? |
monocular and binocular cues, monocular requires only one eye |
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linear perspective |
lines converge to a common point at a distance
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relative size |
more distant objects look smaller |
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texture gradient |
texture of objects becomes less apparent the further away they are, more detail close up |
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interposition
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closer objects block our view of objects further away/behind them |
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height in plane |
in a scene, distant objects are higher and closer objects are lower |
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binocular disparity |
each eye transmits different information for near objects, but become similar the further away objects are |
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binocular convergence |
when we look at nearby objects our eyes converge together, brain can track eye muscle movements and use that information to estimate distance |
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parallel processing |
building perceptions out of sensory details processed in different areas of the brain at the same time; different mental processes operating side-by-side without interacting with each other |
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what is consciousness? |
often refers to a person's subjective awareness of internal and external stimuli, including thoughts, perceptions, experiences, and self-awareness |
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four characteristics the "stream of consciousness" is governed by, according to William James
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1) every thought tends to be part of a personal consciousness 2) consciousness is in constant change 3) within each personal consciousness, thought is sensibly continuous 4) it attends to some parts to the exclusion of others |
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what is attention?
|
no one really knows, "taking possession of the mind, in clear and vivid form, of one out of what seem several simultaneously possible objects or train of thought", "withdrawal from some things in order to deal effectively with others" |
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how does attention shape/limit consciousness? |
guides perception, which involves the processing of sensory information in such a way that it produces conscious experiences that we attend to; don't attend to all of it, only some pieces |
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Broadbent's filter theory of attention |
attention is a bottleneck through which information passes, filter that allows us to pay attention to important stimuli while we ignore others |
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selective attention |
what we focus on is what we consciously perceive, attention shapes how we construct the world around us (ex. Necker's cube) |
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selective inattention |
refers to our failure to notice part of our environment when our attention is directed elsewhere |
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does subliminal influence work? |
yes, in certain conditions, for a short time |
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naive realism |
false belief that our senses are infallible and that our perceptions offer perfect representations of the world, when in reality the sensory organs are not as good as we feel they are and the brain fills in a lot of information to create our experience of reality |
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how does our brain fill in the missing pieces? |
unconscious "low" track and conscious "high" track, low track is bottom-up and below the absolute threshold and does not require attention leading to automatic actions based on the cues that our sensory organs capture, high track is top down and above the absolute threshold and requires attention leading to deliberate actions based on what we recognize in our environment |
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how does our brain combine diverse pieces of information into a unified whole? |
often referred to as the "binding problem", early assumption was that some areas would feed others that focus on associations, recent models approach the issue from an iteration perspective |
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iteration perspective |
areas process information very rapidly and in coordination with each other and will repeat the process as needed, initial iterations provide relatively quick and dirty perceptions and help specify whether or not/which type of further processing is needed, initial iterations accompanied by reflective processes yield more nuanced perceptions |
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influences of low and high track processes
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low and high track processes influence each other in creating a combined perceptual experience, as opposed to the tracks working parallel with each other, high track guides low track using expectations while low track guides high track in reflective search for interpreting stimuli, areas of the brain must be talking to each other in order for this to happen |
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context effects |
context provides us a basis for expectations |
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perceptual set |
what we expect to see influences what we do see (top-down processing) |
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perceptual constancy |
ability to perceive objects as having constant shape, size, and colour despite changes in perspective (shape constancy, size constancy, colour constancy) |
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how does socially learned expectations shape perception? |
ex. more people see Arnold Schwarzenegger as leaner because we expect him to be strong/chiseled |
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typical variations of consciousness |
automatic variations (daydreaming, drowsiness, sleep, dreams), physiological variations (hallucinations, lack of oxygen, orgasms), psychological variations (sensory deprivation, hypnosis, mindfulness medication) |
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rhythms of sleep |
approximately every 90 minutes we pass through 5 stages of sleep associated with different brain waves, which vary in frequency, amplitude, and regularity, measured by an EEG
|
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awake and active |
beta waves with high frequency and low amplitude, often irregular |
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awake and calm |
alpha waves with lower frequency and higher amplitude than beta waves, more regular |
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sleep stage 1 and 2 |
theta waves with lower frequency and larger amplitude than alpha waves, breathing decreases, BP and HR decrease, sleep spindles |
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sleep stage 3 and 4 |
slow-wave sleep, delta waves with very low frequency, high amplitude, regular, memory consolidation, growth hormones released |
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sleep stage 5 |
rapid-eye movement (REM), brain activity increases, beta and alpha waves reappear, HR and respiration increase, eye movements under eyelids, associated with dreaming
|
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variations within 90 minute sleep cycles
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with each stage of 90 minutes the time spent in slow wave sleep decreases and the time spent in REM sleep increases
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why do we sleep? |
protection: sleep (staying hidden without movement) may have been adaptive from an evolutionary perspective recovery: sleep helps restore and repair brain tissue consolidation: while sleeping we consolidate, build, and rebuild our memories growth: during sleep the pituitary gland releases GH (seniors release less GH and sleep less) |
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effects of sleep deprivation |
concentration decreases significantly, memory decreases significantly, emotional control decreases significantly, ineffective immune system |
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psychoactive substances |
chemicals produced naturally or artificially which alter the state of consciousness, perception, mood, and/or the regulation of behaviour |
|
stimulants |
euphoria, increased energy, lower inhibition, increase dopamine, serotonin, and norepinephrine |
|
hallucinogens |
major distortion of sensory and perceptual experiences, may lead to fear, panic, and paranoia, increase serotonin, block glutamate receptors |
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depressants |
drowsiness, relaxation, sleep, increase GABA, some linked to release of endorphins |
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physical dependence on drugs
|
associated with painful withdrawal symptoms caused by changes in the physiological processes that regulate the body stemming from repeated administration of a drug |
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psychological dependence on drugs |
psychological needs caused by the repeated experience of positive emotions and reduction of negative emotions during the administration of a drug |
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addiction
|
an involuntary servitude to obtain a substance, caused by physical and psychological dependence |
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is alcohol a stimulant, hallucinogen, or depressant? |
causes euphoria, relaxation, and lowered inhibition, facilitates GABA activity, stimulates endorphin release, stimulates dopamine receptors, tolerance build gradually and the likelihood of dependence is moderate to high |
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what are the main types of learning? |
classical conditioning: learning to link two stimuli in a way that helps us anticipate an event to which we have a reaction (aka Pavlovian learning, associative learning) operant conditioning: changing behavioural responses in response to consequences, requires an organism to consciously act cognitive (latent) learning): learning that can occur without reinforcement and without being directly observable, occurs merely through observation and acknowledgement |
|
learning without thinking? |
behaviourism started with proponents that mental life was much less important that behaviour as a foundation for psychological science, no causal relationship between thought and behaviour, B.F. Skinner and J.B. Watson |
|
neutral stimulus |
solicits no response |
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unconditioned stimulus |
solicits unconditioned response due solely to the physiology of the individual, without any conditioning |
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during Pavlovian conditioning |
neutral stimulus + unconditioned stimulus = unconditioned response once the connection is made between the neutral stimulus and the unconditioned stimulus, the neutral stimulus will solicit the same response as the unconditioned stimulus, even if the unconditioned stimulus is not present |
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after Pavlovian condtioning |
conditioned stimulus solicits conditioned response |
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conditioned stimulus |
solicits a learned/conditioned response |
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properties of classical conditioning |
acquisition, extinction & spontaneous recovery, generalization & discrimination |
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acquisition |
the association between a neutral stimulus and an unconditioned stimulus is acquired, becomes apparent when the conditioned stimulus now triggers a response |
|
timing of acquisition |
for the association to be acquired, the neutral stimulus needs to repeatedly appear before the unconditioned stimulus |
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extinction |
the diminishing of a conditioned response that occurs over time when the conditioned stimulus is presented without the unconditioned stimulus |
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spontaneous recovery |
after extinction and following a rest period, presenting the conditioned stimulus alone often leads to a spontaneous recovery |
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generalization |
refers to the tendency to have conditioned responses triggered by related stimuli
|
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discrimination |
refers to the learned ability to only respond to a specific stimuli, preventing generalization |
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other applications of classical conditioning |
increasing implicit self esteem through classical conditioning |
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operant conditioning |
involves adjusting to the consequences of our behaviours, functionalism, original work done with rats, behavioural response is followed by a reward or punitive feedback from the environment |
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Thorndike's law of effect |
reinforced behaviour is more likely to be tried again, punished behaviour is less likely to be attempted in the future |
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how is operant conditioning different from classical conditioning?
|
initiated by the organism, whereas in classical conditioning the organism does not consciously do anything |
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types of reinforcement |
positive/additive reinforcement: adding something desirable (ex. giving in to a tantrum)
negative/subtractive reinforcement: removing something unpleasant (ex. seatbelt car alarm) |
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continuous reinforcement |
the subject acquires the desired behaviour quickly |
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partial/intermittent reinforcement |
the target behaviour takes longer to be acquired/established but persists longer without reward, can be based on intervals of time or the ratio of rewards per number of instances of the target behaviour |
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fixed interval intermittent reinforcement |
slow, unsustained responding, rapid responding near time for reinforcement |
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variable interval intermittent reinforcement
|
slow, consistent responding |
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fixed ration intermittent reinforcement |
high rate of consistent responding |
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variable ratio intermittent reinforcement |
high rate of consistent responding, very robust and will resist extinction even if reinforcement stops
|
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positive/additive punishment |
adding something unpleasant/aversive (ex. spanking) |
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negative/subtractive punishment |
removing something pleasant/desired (ex. taking away a toy) |
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what conditions make physical punishment useful?
|
must occur immediately after the behaviour, extremely important that it is consistent, intensity has little impact on the punishment, humans should be provided with an explanation and alternate actions, best when combined with positive reinforcement, physical punishment teaches to respond aggressively |
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cognitive learning |
stimulus ---> organism ---> response organism interprets the stimulus before responding, allows people to have "will" or self-control |
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observational learning |
changes in behaviour and knowledge that occurs by watching others, typically role models, occurs without reingforcement, form of latent learning which is not directly and immediately observable |
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what is memory?
|
the persistence of learning over time through the storage and retrieval of information and skills
|
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how do we know something is remembered? |
recall: can retrieve information previously learned and unconsciously stored recognition: can identify which stimuli match your stored information relearning: is a measure of how much less work it takes you to learn information you had studied before |
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what are the key steps to remember? |
encode: the information gets into our brains in a way that allows it to be stored store: the information is held in a way that allows it to be later retrieved retrieve: reactivating and recalling the information, producing it in a form similar to what was encoded |
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implicit memories |
memories we are not fully aware of and thus don't declare or talk about, do not require attention/effort to encode and recall, procedural memories (learned motor skills/abilities), conditioned associations (things learned through conditioning) |
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explicit/declarative memories |
facts and experiences that we can can consciously know and recall, require attention/effort to encode and recall, semantic memories (general knowledge), episodic memories (specific events we have experienced), flashbulb memories (intense long-term memories of emotional events) |
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automatic processing |
memories go directly to long-term (implicit) memory, procedural memories (ex. riding a bike), conditioned associations, information about space, time and frequency (deja vu effects) |
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effortful proccessing step one |
sensory memory, very brief recording of sensory information (varies depending on the sensation), analogous to an echo or an image of all the sensations we take in, if attention is placed on part of the information it will move to short-term memory or otherwise disappear |
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effortful processing step two
|
short term memory, attention determines selection of information from sensory memory sent to short-term/working memory, can hold 7 +/- 2 pieces of information for approximately 20 seconds |
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spacing effect
|
best to use the same amount of study time spread out over many shorter sessions, cramming is not effective |
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testing effect |
if your distributed practice includes testing, you will learn more and retain more than if you merely reread |
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chunking |
creating groups with pieces of information, best if these groupings are familiar to us |
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hierarchies |
divide complex information into concepts and then sub-concepts |
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visualization
|
mental images are powerful aids to memory, especially when combined with semantic encoding (chunking/hierarchies), creating links that involve visual cues and the method of Loci |
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method of Loci |
lining the information you are trying to store to the place you have it stored |
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working memory |
holds information not just to rehearse it but to process it, integrates information from long term memory with new information coming in from sensory memory |
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how much can we remember and for how long? |
brain's long term memory does not get full, gets more elaborately rewired and interconnected, estimated 1000 billion to 1000000 billion bits of information |
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encoding, storage, retrieval and use of explicit memories |
encoding and storage facilitated by the hippocampus during sleep (consolidation), working memory retrieves information as directed by the frontal lobes |
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encoding, storage, retrieval and use of implicit memories |
basal ganglia involved with the encoding and storage of procedural memory and motor skills, cerebellum involved with the encoding and storage of our conditioned responses |
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emotions and memory
|
emotional responses can accentuate/facilitate the encoding of information, strong emotions (stress, traumatic events) can strengthen memory formation |
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flashbulb memories
|
emotionally intense events that become burned in as a vivid-seeming memory, feels like a perfect copy of the short event, can become more traumatic each time it is recalled |
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recalling information from long term memory
|
when we recall our memories we filter or fill in parts to make our memories more consistent, each time we recall information our memories can change |
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misinformation effect |
incorporating misleading information in the memory of an event |
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source amnesia |
assigning details of a memory to the wrong source |
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false memories |
often due to the confusion between an event that happened to you and that happened to someone else, belief that you remember something that actually never happened, likely to happen when you thought of the event often, imagined more details of the event, the event is easy to imagine, our attention is brought to the emotional reaction and not the facts |
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false memory syndrome |
a condition in which the identity and relationships of a person rest on memories that are false, but perceived as real traumatic experiences; some cases induced by poorly trained and/or ill-intended therapists have been documented |
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perils of memory in this information age |
because of multiple cognitive biases we have the illusion that we control how the information we encode affects us, but in reality we don't control it; the best solution may now be to consciously filter/select the information that you expose yourself to before exposing yourself to it |
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cognition |
mental activities and processes associated with thinking, knowing, remembering, and communicating information |
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concepts |
mental groupings of similar objects, events, states, ideas, and/or people, interchangeable with "schemas" |
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how do we form/learn concepts?
|
do NOT derive concepts from a definition that we have learned/memorized, typically derived from prototypes |
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prototypes |
mental images of the best example of a concept within a category |
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categorization of concepts |
create categories of objects according to a certain set of rules by a specific definition, fit to a category is determined by comparing a target to the prototype of the category, what we quickly access is the prototype and if the prototype doesn't fit we go back to the definition |
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when do prototypes fail? |
when examples stretch the qualities associated with the prototype, when the boundary between the categories of concepts is fuzzy, when examples contradict our prototypes |
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problem solving
|
thinking in order to answer a complex question or to figure out how to accomplish a goal when the solution or path to the solution is not clear |
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algorithms |
a step by step strategy for solving a problem, methodically leading to a specific solution, quality > speed |
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heuristics
|
mental shortcuts that give some guidance on how to solve a problem, help generate solutions quickly, does not guarantee solutions consistently, speed > quality |
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representativeness heuristic |
judgement of likelihood based on the similarity or relationship with a particular category |
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availability heuristic |
judgement of the frequency of an event based on how easily we think of examples |
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confirmation bias |
tendency to search for information which confirms our current explanations, disregarding contradictory evidence |
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fixation |
the tendency to get stuck in one way of thinking, often because of how we understand concepts, limits our ability to think of a problem/solution from a new perspective
|
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overconfidence |
tendency to be more confident than correct, overestimate the accuracy of our estimates, predictions, and knowledge
|
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language |
use of symbols to represent, transmit, and store meaning/information; useful for storing information, sharing information, and understanding others |
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linguistic determinism |
the idea that our specific language determines how we think, has cultural aspects tied to it
|
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motivation |
refers to a need or desire that energizes behaviour and directs it towards a goal, combination of physiological and psychological processes |
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instincts |
fixed (rigid and predictable) patterns of behaviour observed across all members of the species, not acquired by learning, totally rooted in genes, does not involve rational decision making (cognition) |
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drive |
aroused/tense state related to a biological need that is not being met, shared among member of the species, includes hunger, thirst, belonging, pain, sex, etc.
|
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drive-reduction theory |
suggests we are motivated to restore homeostasis when a drive emerges need ---> drive ----> drive reducing behaviour |
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incentive
|
a reward, increases the likelihood of a behaviour (positive reinforcement), allow for learned response-reward pairings, motivate by attracting the person to the reward as opposed to pushing the person like a drive |
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push vs. pull forces |
when both drives/needs and incentives work in tandem we are highly motivated, but in some situations incentives conflict with needs |
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motivation for arousal |
need to either increase or decrease out physiological arousal level to maintain an optimal level of arousal, don't want to be too aroused but don't want to be bored either |
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Maslow's hierarchy of needs |
starts with physiological needs, safety, love/belonging, esteem, self-actualization, highlights how wide-ranging human motivation can be, humans have multiple motives beyond pleasure and pain, order is not necessarily fixed, does not extend across cultures |
|
flow |
a state of experience where a person, totally absorbed, feels tremendous amounts of exhilaration, control, and enjoyment, occurs when people push their abilities to their boundaries and in doing so experience a merging of action and awareness, can occur throughout the spectrum of daily experience, achievement of flow is associated with psychological well-being
|
|
intrinsic motivation |
concerns active engagement with tasks that people find interesting and promote growth, comprised of autonomy, competence, and relatedness, achieved through balance between the needs as opposed to maximizing any one of them |
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autonomy |
refers to feeling like we are causal agents of our own behaviour and the goals we pursue |
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competence |
people need to gain mastery of tasks and learn different skills, feeling of confidence |
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relatedness |
people need to experience a sense of belonging and attachment to other people |
|
taste preferences |
humans have a universal preference for carbohydrates because of the amount of energy that they provide, other tastes are acquired and become favourites through exposure, culture, and conditioning, some are individually learned, aversions after only one incident |
|
the French paradox |
idea that people in France, although they eat fattier food, tend to be leaner and have less cardiovascular disorders than people in the US who eat less fatty foods, not a question of the fat but the eating habits across different cultures, portion sizes and time spent eating, American portions 25% larger and less time spent eating a meal |
|
need to belong |
most people think it is a secondary need but it is actually a fundamental need, essential from an evolutionary perspective, survival requires cooperation, married people are better off, loneliness is associated with greater risk of psychological and physiological disorders, the pain of social exclusion is associated with the activation of the same areas in the brain linked to physical pain |
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what do emotions do? |
functional perspective suggests emotions are signals to motivation, well-suited to help us manage the "push" of biological processes and the "pull" of socio-cultural forces |
|
what is an emotion? |
A - arousal - something will change in your physiology (heart rate, sweating, etc.) B - behaviour - overall body language/position C - cognition - thoughts and labeling of the emotion |
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emotions as motivation |
general agreement that emotions function as one type of motivator, but views about their importance vary |
|
emotions as evaluation |
positive emotions signal the satisfaction of our motivational states whereas negative emotions signal the frustration of our motivational states, emotions are not necessarily motives in the same way that needs are, instead they reflect the status of other motives |
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James-Lange theory
|
body before thoughts, our emotions directly follow the responses of our physiological reactions to a stimuli, when you see an event of significance your body begins to react and different feelings/types of arousal arise from this |
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Cannon-Bard theory |
simultaneous body response and cognitive experience, our emotions occur simultaneously with our physiological reactions to a stimuli |
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Schachter-Singer theory |
"two-factor" theory, emotion = body + a label, emotions are the result of physiological responses and the cognitive appraisal of this response, when a significant event happens we experience the joint combination of arousal and appraisal, means that we have control over our emotions |
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emotions without cognitive appraisal |
Robert Zajonc, some emotional reactions (fears, likes, dislikes, etc.) develop in a "low road" through the brain, skip conscious thought |
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are you controlled by your emotions? |
often emotions provide us with useful information that helps us adapt to changing life circumstances but sometimes the emotions we feel are not ideal or conflict with our roles, mastering the regulation of your emotions requires practice and effort but can be improved |
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awareness monitoring |
recognize the emotions you are experiencing, label them, allows you to monitor them |
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situation appraisal |
choosing how to view a situation, how you view that event affects how you will feel about it |
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mindfulness |
mental state of consistent and flexible attention to the present moment both outside of us and within, involves accepting a nonjudgemental, curious attitude |
|
training mindful awareness
|
non-religious and non-esoteric, derived from meditation practices, aim to strengthen attention/concentration skills, build self-awareness and improve how people manage their emotions |
|
two most frequently used mindfulness programs |
Mindfulness Based Stress Reduction (MBSR) Mindfulness Based Cognitive Therapy (MBCT) |
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negative forms of emotion regulation
|
relying on external mechanisms to regulate emotions can backfire, relying on people/substances |
|
alcohol myopia |
a state of shortsightedness in which superficially understood, immediate aspects of experience have disproportionate influence on behaviour and emotion, using alcohol to regulate anxiety and stress, feel better about oneself, lower inhibition to do things that otherwise they would not be able to experience |
|
types of emotions |
positive + high arousal = enthusiastic positive + low arousal = relaxed negative + high arousal = fear/anger negative + low arousal = sad |
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basic human emotions |
anger, disgust, fear, happpiness, sadness, surprise, expressed across cultures using the same facial expressions and experiences, universal to all people, human have a preference for negative emotions, bad is stronger than good, bad increases motivation
|
|
anger |
uncomfortable emotion often experiences when we believe we were wronged |
|
the catharsis myth |
reduce anger by acting aggressively to release it, aka venting or blowing off steam, actually counterproductive, teaches to act aggressively and often leads to feelings of guilt, the more you vent the better you become at being angry, if you change your mindset your anger can dissipate |
|
guilt |
typically occurs when we think a moral transgression occurred because of our "bad behaviour", motivates reparation |
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shame |
typically occurs when we think a moral transgression occurred because we are a bad person, motivates withdrawal, leads to depression |
|
secondary emotions |
require socialization to be experienced, guilt and shame |
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personality |
an individual's characteristic patterns of thoughts, feelings, and behaviours persisting over time and across situations, develops in a dynamic interplay between conscious and unconscious processes |
|
Sigmund Freud |
fascinated by the unconscious, formulated a theory of the structure of human personality and its development, the theory and its therapeutic technique were named psychoanalysis |
|
components of personality according to Freud |
at the start of life personality is made up of the id ("the pleasure principle"), then the ego develops ("reality principle") and negotiates the demands of the id with reality and later the superego, around age 4 or 5 the superego ("morality pronciple") develops and a conscience internalized from parents and society following the ideals of morals, personality arises from the efforts of our ego to resolve tension between our id and superego |
|
Freud's theory of psychosexual stages |
oral (0-18 months): pleasure centres on the mouth anal (18-36 months): pleasure focused on bowel and bladder elimination and control phallic (3-6 years): pleasure zone is the genitals, coping with incestuous sexual feelings latency (6-puberty): a phase of dormant sexual feelings genital (puberty+): maturation of sexual interests |
|
psychoanalytic techniques for revealing the unconscious mind |
creative techniques such as free association, looking for meanings for the latent content of dreams or for slips of the tongue |
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how does the ego protect us? |
reduces anxiety by unconsciously altering reality, uses denial, displacement, regression, projection, rationalization, and reaction formation |
|
denial |
refusing to believe or even perceive painful realities |
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displacement |
shifting sexual or aggressive impulses toward a more acceptable or less threatening object or person |
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regression |
retreating to a more infantile psychosexual stage |
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projection |
disguising one's own threatening impulses by attributing them to others |
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rationalization |
offering self-justifying explanations in the place of the real, more threatening unconscious reasons to one's action |
|
reaction formation |
switching unacceptable impulses into their opposites |
|
Neo-Freudian psychodynamic theorists |
accept Freud's ideas about the importance of the unconscious and childhood relationships in shaping personality, the id/ego/superego structure of personality, the role of defense mechanisms, but recognize that anxiety and personality are a function of social pressures rather than sexual tensions in childhood |
|
psychodynamic personality assessment |
projection of unconscious themes into the conscious world, projective tests such as Rorschach, etc. |
|
updates to Freud's ideas |
development appears to be lifelong, not set in stone by childhood, dreams have many possible origins, infant neural networks are not mature enough to create a lifelong impact of childhood trauma, we may ignore threatening information but traumatic memories are usually intensely remembered rather than repressed, gender and sexual identity seem to be more a function of genetics and social forces rather than solely based on relationships with parents (Oedipus conflict) |
|
flaws in Freud's scientific method |
1) unfalsifiability: for many elements of Freudian theories it is impossible to derive clear hypotheses 2) unrepresentative sampling: very limited number of observations for theories that apply to humanity 3) biased observations: he elaborated and examined his theory with his own patients 4) post-facto explanations rather than predictions |
|
the unconscious today |
cognitive unconscious that operates automatically, is functional in nature particularly in regards to social functioning, and responds to situational stimuli, the unconscious is about processing, perceptions, and priming but is not a place |
|
humanist perspective on personality |
Carl Rogers and Abraham Maslow, emerged in reaction to the dehumanizing ideas of behaviourism and the dysfunctional view of people in psychodynamic perspectives, focuses on conditions that support healthy personal growth as opposed to focusing on problems |
|
Rogers' person-centres perspective |
3 conditions that facilitate growth: genuineness, acceptance, empathy |
|
acceptance |
unconditional positive regard, acknowledging feelings and problems without passing judgment |
|
empathy |
tuning into the feelings of others, showing your efforts to understand |
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ideal self vs. actual self |
in the humanistic perspective the core of personality in the self-concept, people are happiest with a self-concept that matches their ideal self |
|
critiques of the humanistic perspective |
lacks an appreciation for the contribution of genetic influences on some thought and behaviour patterns, argument that accepting accepting ideal self and self-actualization do not encourage self-transcendence but self-centredness |
|
trait |
an enduring quality that makes a person tend to act a certain way, Allport and Odbert identified 18000 English words that represent personality traits, factor analysis by Raymond Cattell grouped words that went together into 16 clusters, Hans and Sybil Eysenck identified two dimensions of traits (stable vs. unstable and introverted vs. extroverted) |
|
"Big Five" personality factors |
openness, conscientiousness, extraversion, agreeableness, neuroticism (OCEAN) |
|
openness |
flexibility, nonconformity, variety |
|
conscientiousness |
self-discipline, careful pursuit of delayed goals |
|
extraversion |
drawing energy from others, sociability |
|
agreeableness |
helpful, trusting, friendliness |
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neuroticism |
anxiety, insecurity, emotional instability |
|
questions about trait-based approaches to personality |
stability: assumption that personality is fairly stable and does not change over time heritability: if traits are genetic they would not change over time predictive value: personality traits are a relatively poor predictor of behaviour |
|
personality inventory |
questionnaire assessing many personality traits by asking which behaviours and responses the person would choose |
|
Myers-Briggs type indicator (MBTI)
|
developed to examine personality as conceptualized by Jung, 16 personality type profiles, belongs to private company, determines where you focus your attention (extraversion vs. introversion), the way you take in information (sensing vs. intuition), the way you make decisions (thinking vs. feeling), and how you deal with the outer world (judging vs. perceiving) |
|
Minnesota multiphasic personality inventory (MMPI) |
fully atheoretical, relies on patterns observed in the data using factor analysis; clinical scales, validity scales and supplemental scales |
|
assessing the big five |
NEO personality inventory (neuroticism, extraversion, openness) and NEO-PI-R (covers all five trait domains) |
|
struggles with personality tests |
struggle to predict any one instance of a behaviour, predict the occurrence of behaviour over long period of time, need to know about the social context in which that personality will be expressed |
|
reciprocal determinism |
how personality, thoughts, and social environment all reinforce/cause each other over time |
|
the self |
assumed to be the centre of personality by socio-cognitive approaches, the main repository of our memories, schemas and expectations which we use to interpret situations, stored information about us, guides the processing of thoughts, feeling and actions |
|
self-esteem |
the value of the self, increased self-esteem has been observed to buffer inflammatory responses to acute stress |
|
what is social psychology? |
the study of how people influence each other's thoughts, emotions and behaviour through their actual, imagined or anticipated presence
|
|
auto-kinetic effect |
if put in a completely dark room with one dot of light, light will begin to appear as though it is hovering/moving |
|
why do we conform? |
to get information (informational influence), when the situation is ambiguous the actions of others help us figure out reality, often happens when we do not have well-learned norms for a particular situation, to fulfill our need to belong (normative influence), afraid of being ridiculed by others |
|
cognitive dissonance
|
people want to maintain consistency between thoughts and/or actions and appear as a good person, inconsistencies between thoughts and/or behaviour create an unpleasant state of arousal, results from threat to people's sense of themselves as rational, moral and competent, motivates efforts to resolve inconsistencies |
|
attribution |
a conclusion about the cause of an observed behaviour, situational or dispositional |
|
situational attribution |
factors outside the person are causing the action |
|
dispositional attribution |
the person's stable traits/personality are causing the action |
|
fundamental attribution error |
we typically overestimate the dispositional influences and underestimate situational influences on other's behaviours |
|
actor-observer effect |
when we explain our own behaviour, blame the situation for our failures, assume successes are because of disposition, social cognitive bias that contributes to maintain high self-esteem |
|
attitude |
an evaluation of a person, place, object, event or behaviour, key component to how we understand others, lay assumption that attitudes guide behaviour |
|
components of attitudes |
A - affective - emotions or feelings toward B - behavioural - actions that result from C - cognitive - knowledge about |
|
do attitudes predict behaviour? |
assumption that private beliefs determine public behaviour, omits that people do not live in a social vacuum, situational influences also shape behaviour, does not mean that we have weak willpower bu shows that we have acquired motives that allow us to efficiently navigate our social world
|
|
when do attitudes influence behaviour? |
the attitude is stable, the attitude is easily recalled, the attitude is specific to the behaviour,opposing external influences are minimal, external influences align with the attitude
|
|
perceived social norms |
what we perceive relevant others would do/think/feel or see as acceptable to do/think/feel in a given situation |
|
persuasion |
a direct attempt to change someone's attitude |
|
central route of persuation |
change attitudes through the process of reasoning, when interested people focus on the arguments and respond with favourable thoughts, provide good reasoning and high-quality arguments, need the recipient to have attention and motivation |
|
peripheral route of persuasion |
change attitudes through feelings and superficial associations, when people are influenced by incidental cues, do not need the recipient to have attention and motivation, can use this approach to motivate a central route |
|
compliance |
subtly getting people to act in some desired way, typically in a way that otherwise would be inconsistent with their attitude, different than persuasion, persuasion changes attitude to change behaviour whereas compliance changes behaviour and lets cognitive dissonance work to create attitude change, uses social needs as leverage to get people to act in a desired way |
|
foot-in-the-door technique |
make a small request that is likely to be accepted to get the person to commit to an action plan, follow it be a larger request which otherwise would most likely have been turned down, works through commitment to small steps that people do not notice or assume to be so simple they are harmless |
|
low-balling
|
drawn in by first offer which seems great but final price is much higher, an advantage is offered that induces a favourable commitment but after the commitment is made the original advantage is changed |
|
bait-and-switch |
variation of the low-ball, bait with an attractive offer but the bait is not available when you get there, switch to different option |
|
fear-based messages |
contain vivid information and can be very persuasive, can be risky strategies because they can backfire, best used in combination with instructions on how to avoid negative outcomes |
|
how do we define psychological disorders? |
lack of control over symptoms that deviate from socio-cultural norms, cause dysfunctional or dangerous actions, cause distress |
|
what is normal? |
what most people do/think/feel (averages), what most people should do/think/fell (values), what most people would expect you to do/think/feel (expectations), whether a behaviour varies from normalcy depends on the context |
|
how to distinguish one disorder from the next |
patterns of dysfunctional behaviour and/or thoughts that create distress and deviate from the norm, some patterns tend to go together, these groupings of symptoms are the basis to distinguish one disorder from another one |
|
Diagnostic and Statistical manual |
newest version is DSM-V, classification primarily based on type and number of symptoms, aetiology of the symptoms, prognosis |
|
why create classifications of disorders?
|
increases reliability between psychologists assessments, diagnoses create a verbal shorthand for referring to a list of associated symptoms, diagnoses allow to statistically study many similar cases which helps improve practice, diagnoses help guide treatment choices and learning to predict outcomes of treatment, used to justify payment for treatment
|
|
critiques of the DSM |
border between disorder and normal is often blurry, border between diagnoses is often blurry, include value judgments shaped by prevailing cultural norms, direct how patients view themselves and others view them |
|
critiques of the DSM-V |
pharmaceutical company input, adding new disorders that end up pathologizing otherwise challenging but normal behaviour and though patterns, combining diagnoses criteria that might be better off separate, vague criteria |
|
five axes of the DSM-IV |
Axis I - all diagnostic categories except mental retardation and personality disorder Axis II - is a personality disorder or mental retardation present? Axis III - is a general medical condition also present? Axis IV - are psychosocial or environmental problems also present? Axis v - what is the global assessment of this person's functioning? |
|
anxiety disorders |
characterized by a permanent and irrational fear that typically brings people to avoid certain situations, people and/or objects |
|
generalized anxiety disorder (GAD) |
apprehension and agitation persistent and uncontrollable, inability to identify the cause(s) of the anxiety, activation of the autonomic system to a generalized wide range of stimuli |
|
phobia |
uncontrollable, irrational, intense desire to avoid certain situations, people or objects |
|
obsessive compulsive disorder |
obsessions are intense, unwanted worries, ideas, and images that repeatedly pop up in the mind, a compulsion is a repeatedly strong feeling of needing to carry out an action even though it doesn't feel like it makes sense |
|
classical conditioning and anxiety |
acquiring anxious responses, result is a phobia or generalized anxiety |
|
operant conditioning and anxiety |
negative reinforcement motivating anxious-avoidant responses, result is an increase in anxious thoughts and behaviours, maintain anxious responses |
|
cognition and anxiety |
cognitive processes include anxiety-provoking thoughts such as mistaken appraisals and rumination (worried thoughts), in anxiety disorders such types of cognitions appear repeatedly and often automatically, acquired though direct and observational learning |
|
mood disorders |
cluster of disorders for which a disturbance of the person's mood is assumed to be the underlying cause |
|
major depression
|
6% of men and 10% of women, depressed mood, loss of interest or pleasure, most of the time/days during the same two weeks, will sometimes also manifest more in terms of somatic symptoms, subjective report or observation made by others |
|
stigma/misconceptions surrounding depression |
major depression episodes are actually painful for the person, adding stigma makes it worse |
|
mood disorders from a biological perspective |
less norepinephrine (arousal) during depressive episodes, reduced serotonin activity with presence of depression symptoms |
|
substance abuse disorders |
disorders in which the need for obtaining a substance and/or its frequent use creates dysfunction, in most societies moderate use of some psychoactive substances is considered normal, when moderate substance use is normal in a given environment it may hamper people from noticing they have a problem |
|
when does an unhealthy habit become a disorder? |
loss of control over the use of the substance, impairment in daily functioning and continued use of substance despite adverse consequences, physical or emotional adaptation to the drug such as in development of tolerance |
|
target of substance abuse disorders |
target the brain, substances that can cross the blood-brain barrier, typically affect areas of the brain tied to the neurotransmitter dopamine |
|
neuroadaptation |
with time the brain adapts to the repeated/continuous presence of the substance which leads to a greater tolerance, facilitated by biological, psychological and social factors |
|
opponent process theory |
early on the substance produces a hedonic state (affective pleasure), positive reinforcement motivates the search for that experience again, opponent processes will start to change the body to adjust to the presence of the substance and build tolerance, with repeated exposure a higher dose is needed for the same "buzz", eventually when the substance is not taken the body experiences an unpleasant state (withdrawal), negative reinforcement sets in and motivates the search for the substance |
|
how do we go from symptoms to treatment? |
client comes with symptoms, axis 5 (emergency response), axis 4 (change environment), axis 3 (treat medical condition), axis 2 (long term management), axis 1 (psychological treatment) |
|
two avenues of treatment |
change something in the environment, enhance the person's abilities using medication or psychotherapy |
|
psychotherapy |
an interactive experience with a trained professional, goal of understanding and changing dysfunctional habitual patterns of behaviour, thinking and/or emotions |
|
biomedical therapy |
the use of medications and other procedures acting on the body to reduce the symptoms of mental disorders, goal of addressing changes associated with psychological disorders |
|
systematic desensitization |
beginning with a tiny reminder of the feared situation, keep increasing the exposure intensity as the person learns to tolerate the previous level |
|
counterconditioning |
linking new positive responses to previously aversive stimuli |
|
operant conditioning therapy |
making sure that desired behaviours are rewarded and problematic behaviours are not rewarded (or punished), often requires monitoring to identify the stimuli that triggers the response |
|
Aaron Beck's therapy for depression |
depression is worsened by errors in thinking, interpreting current events as signs of the worst possible outcome (catastrophizing), raise awareness by questioning without judgement to identify the cognitive error, change the faulty cognitive process through exercise |
|
cognitive behavioural therapy (CBT) |
works to change both cognitions and behaviours that are part of a psychological disorder |
|
psychologist |
protected title, must be registers with the college of psychologists, anyone can call themselves a psychotherapist |
|
3 tips for active listening |
paraphrasing, intentional silences, validating what people say |